TextExpression.java

package edu.ucsf.mousedatabase.dataimport;

import java.util.HashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class TextExpression implements Expression
{
  private String name;
  private String columnName;
  private String regex;
  private String[] groupNames;

  public TextExpression(String name, String columnName, String regex, String[] groupNames)
  {
    this.name = name;
    this.columnName = columnName;
    this.regex = regex;
    this.groupNames = groupNames;
  }

  public ExpressionMatch match(HashMap<String,String> row)
  {
    ExpressionMatch result = new ExpressionMatch();
    Pattern ptn = Pattern.compile(regex);
    Matcher match = ptn.matcher(row.get(columnName));

    //String result = null;
    if (match.find())
    {
      result.setMatch(true);
      for (int i = 0; i < match.groupCount(); i++)
      {
        result.addGroup(groupNames[i],match.group(i));
      }
    }

    return result;
  }

  public String[] getGroupNames() {
    return groupNames;
  }
  public String getName()
  {
    return name;
  }

}